Burglar-alarm system.



BUBGLAR ALARM SYSTEM.

(Application led July 12, 189B.)

2 Sheets-Shoe( 2.

ilixnjfrnn STAT-ns a,

PATENT Citrine.,

CLY'DE CCLEll'iAN, OF CHICAGO, lLLlNOl, ASSIGNOR TO THE BANKERS ELECTRICPROTEC'llVE COMPANY, OF SAMEPLACE;

ennemie-ALARM SYSTEM.

SPEGFICATIGN forming part of Letters Patent No. 667,115, dated January29, 190i.. Amjcmion med July 12, 1898. berial No. 685,801. \No model.) y

To all wwnt 17m/y concern,.- l

Be it known that l, CLYDE COLMAN, a citizen of tie United States ofAmerica, and a resideutoi Chicago, in the conutyof Cook and 5 State oi'Iliinois, have invented certain new -and useful improvements inBurglar-Alarm Systems, of which the following is a specification. Y Thepresentin ven tion relates to au electric Io protective systemagainst'burglars, and more particularlyzto-that class of sn'chsystemsinV which the alarmmechanism is located within a guarded-structure, anexample of which may be foundfin Reissue Letters Patent No. "vr r;1l,626,to Coleman, Deane, and Donnell, dated August 17, 1897. f Theobjectsof the presentimprovements areas follows: iirst, to provide asimple, dubranleI and eiective means for preventing aczo 4cess t`o thealarm mechanism through the sonndmpassagemthe alarm strucf" ture withapnimrsemf disabling or the destruction of suchalarm mechanism,and which:means in the simpler form of the present in- 'ention involves anelectrical barrier inter osed betweenthe mechanical barrier and thevalarm mechanism and in the more advanced orm of the `presentinventionthe-interposiion of such 'electrical barrier between a duv'lieatearrangement of' the mechanical bar- "t'ne innermost mechanical barriermust be passed after the destruction of the electricall barrier beforethe alarm mechanism can be 1 which'such alarm mechanism Will beoperative beforeit lcan be lreached through such nner-most mechanicalbarrier, all as will herenafter more'fully appear, and be moreparticnlarly'pointed out in the claims; second,

,4 forsuch guarded structures for alarms andother allied .uses that isvery sen-- "structure-or the structures adjacent thereto;

third,- to provide in connection witnsuch structu re,apertredfor theemission of sound,

Agctempt is made to u1 ufle the alarm mechanism riers in front of thealarm mechanism, so that l reached, thus affording an interval of timein' to provide' a simple and efficient form of elecs itive to.anyvnnautliorizeddisturbance in its'v l--parts in 'the several views.

V; VThe general arrangement ofthe presentim--iV galarmmechanism and 4itsguarded Yinclosing"V means v,fion-sounf'ling 4an Aalarm when anat-A .bythe introduction of a fiuid or mobile mass into the interior of theguarded structnreiiif f closing the alarm mechanism; fourth, to provide,in connection with the entrance door or cover of the guarded structureof au alarm4 55 mechanism and in connection with the series ofindependent fastenings, individual means i for giving an alarm when anyone of the fas-fi enings is tampered with. ,l attain such oh, `jects bythe construction and arrangementoff parts, substantiall7 as shown in theaccom-1f" panyingdrawings, in which- Figure i isa diagrammatic viewillustrat.`

ing an electrical protective system against". burglars andillustratingthe location and con'- 65' nection of the presentimprovements; Fig.`2,. a longitudinal sectional elevation of the guardedstructure for the alarm mechanism,` illustrating the general arrangementof the? present improvements; Fig. a transversciyo sectional elevationof the saine onV line :n 06,? Fig. 2; VFig-4, an enlarged detailsectional elevation of the fastening/means for the door of such guardedalarm structure'and thecircuit-breaking means connected with such 75fastening means;' Fig.;5, an enlarged sectional elevation of the slattedtype of electrical barrier of `the present in ventiong'Figs.

.(5, 7, 8, 9, l0, 1l, and l2, enlarged detail sec` tions illustratingvarious arrangements of v8o the electrical conductorsin connection witha-frangible support; Fig. 13, an elevation of an ordinary frangibleelectrical barrier to illustrate the usnal means employed to bafie v thesame; Fig. 14, a detail elevation of the 85 duplex type ofapertured-plate electrical barrier of the present invention; Fig. 15, atransverse section of the same von line ai ai', Fig. le; Fig. 16, adetail sectional elevation of the circuit breaker that is adapted tooperate 9o when an attempt is made to muiiie the alarm mechanism by theintroduction of amobile Similar numerals lof reference indicate likel'prove'meuts in the guarded alarm-station of Van electric protectivesyste m against burglars A,fis illustrated in the diagram vieWFig. 1 ofthe drawings, as well as its arrangementin ion connection with thestructu reto be guarded,

which arrangement is substantially similar,

Reissue Patent No.

ln such diaeuts the guarded structo that-shown in the prior heretoforereferred to.

gram view, A repres in Figs. 2, 8, 5, 6,'7,

analogous `trahgiblematerial, either inthev form of a series of bars orslats l2, as shown 8, 9,10, 11, and 12, and.' 7o f' which are preferablystaggered or altern ated with relation to each other when assembled toconstitute an electrical barrier, as illus tratedin Figs. 2 and 5,-or inthe form of a se-l.-

h prior patent and partof abuilding substructure which d which has itsvuls protected by one or ture as set forth in suc 5 may be the buildingment, safe,vault, or other it is desired to protect an uerable pointsorpart ries of perfor ated vplates 18, the apertures or 7 f which arestaggered or alternated with relation to each other, as illustrated inFigs. 14. and 15. It is within the province 'of this part of the presentinvention s 1, that are in circuit. perfor-ations o lling electricalcircuit 2, respon sive apparatus lsthe alarm mechanher in a direct orinmore .electrical barrier 1o with auiain contro that controls a relayor 3, which in turn vcontro ism 4 of the system eit Vnary insulatedWires secured to the back of the trangible support in a parallelarrangedirect manner, as may be found most desired alarm structure orstation B, ment, as sh Y asin the laforesaid prior patent, comprises aown in Fig. 8, or inthe form of I l two parallel conductors placedbetween` two sections of such frangible su pporting-base, as illustratedin Fig. 10. With a view, how- 5, provided with an suitable metalliccasing napertured 2o side or wall 7 cape .of the mechanism The casing 5has its vari one or more electrica 5 or barriers S, an contains the alarfor operating sai lay or responsive appa Vthe alarm mechanism,

cuit-breakers hereina apertured side or w tutes a mechanical barr 1trance through or between '.todisable. the alarm mech 3,5 A-thesaidprior patent, is f :and suitable ar ever, to achieve added security'in this cony nection the present invention involves animet to form theelectrical conductors 14 of ordi- So roved arrangement of such'electrical conin a closely adjacent and superim" posed condition, one hack .of the other,'upn an inner face of the frangible supportingbase,either by being secured to the backgof `thesupporting'base lO, asillustrated in Figs. 5 and 6,011 inclosed Within lsections off-the asillustrated iu Figs. 'Z and 9, or.."i i closed within a tubular form ofsuch base',:.a illustrated in Figs. 1l and 12. In either cas theconductors are in the form of flattened plates 14' of metaLnSually ti n)il',fl d by strips 15 of insulating materiah* With such construction asabove described L any attempt either to pass through the conductors bymeans of a drill or other tool or s vthat will afford such prodniit of aready outward pashe alarm mechanism. ter mechanical barn Fig. 2 asconsisting of -perforaled plate vtection and yet a lsage of .the soundfrom t .4o-Such -apert u re rier 7 is illustrated i to bridge over andcut out the main portion of such electrical conductors .upon the .barerier will cause the two superimposed andA closely adjacent conductorsot' such improved d angle-bars having -a series of superimpose orm thenec- -separatedrelation to f arrangement to .be bro each other, and bythe disturbance 'set up in let-passages for the sound, and, as

her equivalent courier may be .lessary-` out 5 mentioned above, any ot'struction of such mechanical bar the electrical circuit or cir tem willcause the responsive app act vand sound the alarm apparatus.

d'as, for instance, two-or more perforations of which are d withrelation to each ngementof Fig. 2, in the con-l condary mechan-v he.present invention.

e mechanical barriers -elation` and in The arrangement of the conductorset forth is especial nection with that c :Eorated' plates, the perrered or alternate nclined or lou ver arra tri ps,.as .illustrated inAstruction of the .inner` or se .jcalbarrier 9 of .t thepresentinventiouth anda) have a separated i alarm'mechanism tosound au alarm.

en A.the same is arranged .van

l barrier 10,'. of any suitth the insulated conduc-l tfwit'h a relayor--responas 3, of the alarm mechf t means for releasfV .Another part ofthe ntiou involves the formation of ectri cal barrier of an easilyandto' this-end the baseer 10 for the electrical conglass, porcelain, orother espace betwe apertured. electrica ablecoustructiomryvi.torsthereof in circui we .apparatussuch ;anism 4orlother equivalen"ngthe alarm ipresent'inve `such-.apertured el frangible nature,isupporting portion doctors obviates fmar the ordinary Aarranggement ottl ductor heretofore -used as an electrical v'p'ro tection .forwindowsby bei the inner .surface-of Athe windowglass and whichl was capable ofbeing easily baiiled in Fig.13, in thatby means" ed in thel glass, al

mechanism.

-ma-nnerillustratedin .of small holes ,'16, drill bridge conductor 17(shown in dotted lines) couldbe used to conn The present im provedarrangement of con?` 'y ked defects existing in 1e singlegconiight incircuit with cuits of the sysaratus to sasabove ly adapted for use inconlass ot alarm systemsin Whichcircuits of diierent or varyingpotentials are-employed, in that th crossing of the circuits ,above setforth will so vdisturb such circuits a sponsive appliancel to act. andrelease the e connection or s to causethe ren g secured upon ect twoadjacent porof i the4 cond uctor toe'eth'e.r,`y -circuit thesameeavingthemain pction Ifof --the protectiyeyconducror `upon tlie lsurfaceoftheglassina cut-out. or dormant, y vvcondition, so that by afracture andremoval* ofsuch main portionof` the glass an unau'rf Vthorizedenmanceinto the building could be" -eiectedwitliout an alarm beinggiven. Withl the present-im proved'arran gement of the coul;P ductors,as heretofore described, no such-v at-. vtempt to short-circuit orbridge over would be successfuls" 1, y

"Another part-of the .present invention conistsjvfin includingthemeialof 'the inclosingasing of the alarm structure in the electric-circuitgofjtbefsystein, so. that when itis rought 'intoelectrical.connection with anV 'adjacent electric` lining` bymeans of adrill' brother tool adisturbance of the .circuit will Ybe -set up -tocause the alarm to sound,land *to this endthe electric lining 18, of anyusual'- nd approved construction,- will have anart angement closely adjacent' ro the metal walls fsuch-ica'sing, butminsu'lated therefrom bymeansof a suitable insulation 19, as clearlyllnstrated in.l Fig. 4, iinwhich the Vinsulated Alectrie lining 18 is arranged between 'the main`uer' isingj and a supplementary inner` asiilgor liningZO,thee'ntrace-door 6 having siniila'r-constructiomfas shown insaid FigA.

' nothe'rlpart ofthe present invention -cony 'sfinthe provision'fin thelower portion; of heguarded--alarm stationv or casingr 5 of `anutomaiicallyO operating'fcircu it controlling ym'echanismftbatj isadapted to operate upon an'attempt'fbeing` madeto `amufiie the alarmvmechansmi'bytheiintroduction through the. sound-aperture thereofof vaduid ormobile lling'ofwater, sand," ofthe like; lIn the fori-nf' such-apparatus shown'inFigs and 16 ofi the drawings las illustrating thispartof the'A presen t1- yinvention" i217.' isjla- 'fulcrurned .beaufVcarrying on-oneend-a buoyant or other'iloat:

22a'ndj-iatjthe oppos'iteend a circhit-control-fl 4ling :device '123,that preferably consists -ofa' "glasschamber'f, containing a shiftingmetal" :body 25,"preferably mercury, Vand provided with apair-ofginsulated;'terminals 26 27, exe

tendinginthrough thewalls of such chamber, asfshcwn.vv fWithgthis,construction and with the partsflinranormal position, as :indicatedingEigLfljthe.mercury will connect lthe two. teriiiri'als'Z-'and 27`together' tol complete the 'circnitgwhengihowever,#by lthe introductionviguidr mobile-.mass the oat22'is caused to r1se}and{.tlie chamber 24 to'be" correspondd pressed'untiLtbe/mercur {fiw'sawa .to control anelectric circuit andgive an? .pered with. .Y ln the form of apparatusshown 'in Fig. 4.01"; thedrawing as illustrating this" lone of a seriesof screw-bolts by Wh ich the i door or cover 6 is secured tothealarm-casing or terminals 3l and .32, between whiclrfthe vlower metallicend of the plunger is forced to 'wben said Yplunger is pushed downwardby the screw-bolt. With this construction when "one of the bolts 28 istampered with by an at `tempt/to unscrew or otherwise-remove theA tobreak the circuit and cause thealarm mec r anism to sound an alarm., l@l l, Infannelectrical protective system,- A K `combination of 'anelectrically prolected `therein and controlled by the main protectiv "asnpporxing-base for jsaid conductors pro-fV p provided with aperti) res,su bstantially asse 2. Imam-electrical protectivesystem,ithe

therein and controlledbythe main protective i circuit, an velectricalbarrier for said alarm 115y vvided with apertures, and a mechanicalbar-.5'

ranged ;-ast"1'irevent speedy access to theA izo.L

*,electricalbarrier,` substantiallyas -set fortlrf z Anotherpart' ofthepresent invention con `siste in the provision, in connection with thevseries of independent fasteningsfor the door j y i or cover 6 of thealarm-casing 5, of individual circuit-controllingwdevices thatareladapted 'alarm when anyone of such fastenings is tam"` Y part of thepresentvinvention 2S rei'nesents,`

5'. In axial alinernentwithsuch bolts isla spring-plnnger29,that isadapted to be moved p longitudinally by the screw-bolt 28 as the same isscrewed into place. The housing 30 for such' plunger carries two contactpoints 5 1' electrically connect said terminals togetherv same the lowerend of tbe'sprng-plnngerjQQ will move fawayfrom between the terminalsHaving thus f ull ydescribe'd my tion, what Iclaim as new,anddesireio-se cure by Letters Patent, is`V` l 'L structure,v anelectrically-protected` alarm if v structure," an alarm mechanismyarranged circuit, an electrical barrier for said. alarmlstructure'consisting of a series of conductors,

lvided 'with apertures, anda 'mechanicalA bar rier adjacent 'toznsaideleclricalbarrierals combination of an', electrically'- protectedstructure; an electricallyprotected alarm structurefan alarm mechanismarranged structurefconsistingr of aseries of conductors; asupporting-base forsaid conductors pros rier alsofprovided withapertures and so aralarm mechanism `after the destruction o f the 3. Inkan.electricalLprotectivev -system,.the com bi nation kof4{axrfelectricallyy -l protected i electricallyprotected,1. alarn A nu Yalarm f mechanisnr;arrang 4dcontrolled by thema'ir1protectv ircui @aufelectrical? "barrier foirsaid :ala stru ctur A ,f eonsisti ng of aseries of conductor supporting-basefor saidconductors'p id edWithv-apertureshand ja lseries, of mecha cal v.lmrriers'alsol providedVwith apertu resfthe electrical barrier being i 1 such mechanicalbarriers,

` ^ortlrv' i '4. Infan combination of an el structure, an electricastructure,

wat

circuit, an electrical structure consisting of a seri and asupportingdiase for formed o frangible material an With'aperturcs,substantially as s ical protective s structure, an electrically protecmechanism 4ari y the main protective circuit, an electrical barrier forstructure consisting' of a series of conductors,

i a supporting-base for said c of frangible materia "tures, and a mecsaid ele v(il-In au electrical prete `-combination of 4an lelstructure,v an electrica structure,` therein and contro circuit, anelect-rica structure, consisting o a supporting-base 4for s of afrangible materi N aperture l vided with apertures an prevent speedyaccess to ism after-the destruction of r lcombination `.of an estructure,"; an electrica 'Y structure, Y' therein'and contr circuit, an-electrical barri structure, c

a supp Aof afrangi ertures, and a seri also'provided with ape barrierbeing interpose chanical barriers, substan lly structure`, ipanelectrically tructure, an `al gstructnre, consisting o arrangedpnebackffo nsulatedt-relation,

fstantiallyv as set f orthi4 .t QQJIn an electrical-pro combination' ofan elec E'Structnre, an alarm me nterpos electrical protective system,the*r ectricallyprotected an alarm mechan thereinand controlled by themain protective barrier for said alarm land provided With'aperhanicalbarrier ad ctri'cal barrier also provided with aperiturcs,substantiallyas set forth.`

ectri lly :an l, alarm mechanisnn arr lled bythe main protectivelbarrier for said alarm' f .-a series of condo ctors, aid conductorsform ed aland provided withl s, and a mechanical barrier the alarmmechan- `rier, substantially asset fo 1 5 7. In an electrical protelectrica an alarm mechanism arra olled bythe main protective onsi'stingof 'a series of cond uctors, orting-base for said conductor blematerial and provided with apes of mechanical barriers rtnres, theelectrical d between such me- 8..In. an electrical protective system,combination of an electrically'- prote arm :mechanism arranged hereinand controlled by the main protectivel -circuit, `an electrical A barri4 f a series 'of conductors, f the" Vfand a supportin "said-conductorsprovided vgit tective ed -betwveen bstantially as setprotected alarm ismYarranged ves of conductors, said conductors d provided et forth.

ystein, the ically protected tedV alarmanged said alarm onductors formedjacent to tive system, the cally -protected protected alarm angedv alsoproso arranged as to the rth. ctive system, the lly protected protectedalarm nged electrical barer for vsaid alarm s formed lly as .set forth.

the cted --protected alarm tia er for said alarm l other lin-closearidtric'ally therein L circuit, an structure,

insulated relation, and a structure, an 'electrically v circuit, anelectri system,ithe1 i protected' structure, :anVelectricallyfrprotected ,:alarmf and controlled bythe main'protectivef`v electrical barrier for-said alarm consisting of aseri'esof'conductors 7o k of the other in close and supporting-base for .gductors formed of frangible material ith apertures, substantially asarranged one bac said con and provid ed w set forth.

w10. ln an electr ical protective system, "the combination of anelectrcallyprotected protected alarm structure, an alarm vmechanismarranged therein and controlled by the main protective 8o cal barrierforsaid alarm ng of a series ofconductors, "-1.

-base for said conductors formed by two sections or .portions of frangifi' ble material between which the conductors-S5 are arranged andprovided with apertures, substantially as set forth. y Y. v 11. In anelectrical protective system,"the combination` of an electricallyprotected structure, an electrically protected alarmv 9olstructure,analarm mechanism arranged therein and'controlled by the main protectiV "Icircuit, an electrical barrier for said alarm structure consisting of aseries of conductors, arranged. one back ofthe other` in closeand 9insulated relation,.and a supporting-base for'` such conductors'ormed oftwo-sectionson portions of frangibleinaterialbetween which4V theconductors aregarranged `and provided with apertures, substantially asforth. 'jjf roo l2. ln an electrical protective system, the combinationof an electrically protectedstructure, [an electrically protected alarmf structure; an alarm mechanism arranged therein, and controlled by themain protective v105 circuit., a dooror cover for said alarmstructure, afastening device therefor, and a circuit-controlling device actuated bythe movement of said fastening device, substantiallyas set forth.

13. In an electr structure consisti and a supporting 14. In anelectrical protective systenntheg. j combination .of an relectricallyprotectedf 1 structure, an electrically protected `alarm .-structure, analarm-mechanism` arranged .therein and controlled by the main protective125- circuit, afdoorforgcover for saidalarm struc' ftnre,.-ascrew'boltfastening devi ce therefor, Vand a circuit-'controllingdevice' actuated by -the movement of the'screw-bolt, substantially lasset forthL/- L15. Invanv electrical protectivey system, the icombinationof lan electrically protected, "fstructure, an electrically protectedalarm 'f1 chanism arranged structure, fan alarm mechanism arranged.`

- probectivevlsystem, the jan electrically -protected stru ctt; re,` Imiv electrically protected "ezelarm -,etructure,-fan talarm- 1ine`.cha\.iiism V arranged `2 5 i"therein, and controlled by theuminprotectver L circuit, and a 'circuit-controlling' devicear e 'Tinianelectrical protective gystel, ngedin the interior of the alarmstructure' combination of `emflelec'ftrically protected V"and adapted tooperate upon the introduction i Structure,anjelectrieally@,protected--alarni oflav. mobile bolyv into the'interior :of l the l,5o

:o structure,2m.alarfmecheuism 'arranged structnnelthe.segnecggiprwpg vabalance- `-trer-finj,'nil' ccutrolledby the mein protective lever, aoat'zmdfa chamber of fral'gzible ma.

circuit, 'eindjes cireuit-coiutrolling deVice'araerial at the respectiveends of the levenand v rengedint-he interiorof theelarm structureashiftiugmetal bodyip said chamber,adaptedAV l ein@ adpted tooperate'lipon theintroduction to make andbreak the electrical circuit,sub-3 5 d oia mobile body-intojthe interior of such' stantially assetforth. t ,i 1 fstrxictnr'e" `th`e7sangl-- comprising abailance-lASigned byvme at Chicago,`1llinois', this 0thlever,-roatand'afoh'amber'at the respective' u"day-of Clone,` 1 f ends othe levergao sliiftingmetal gbodv in the ehmber' adapted to makei'an'b1"el .i the-electricalcircuity. substantiallyesf et URNS, 1- i .ifM.I HoLMEs

